The 2.5 turn Triumph rack from Rimmer is perfect, but the manufacturer says not for motorsport use, which makes me uncomfortable, but I haven't found anything other than a custom built alternative.
The 2.5 turn Triumph rack from Rimmer is perfect, but the manufacturer says not for motorsport use, which makes me uncomfortable, but I haven't found anything other than a custom built alternative.
Interesting, what failure are they worried about? is it the casting or the actually rack/pinion? as you say not a whole lot of options for a front mount rack, and I've already built the column based around that rack, Has anyway had the standard ones fail?
Don't know what the exact concern is - maybe back-covering? Here's the letter they sent out to all who had bought one.
Thanks for the info Chris, I sent them an email about it and got this response.
we don't have common failures of the steering rack, we just don't want to 'guarantee' the stresses of some motorsports are suitable for these racks, sorry.
Sounds like ass covering to me!
Last edited by ByrneEngineering; 02-05-2020 at 12:32.
What about using GP4 twin shear type steering arms rather than a high ratio rack? I see a number of advantages; adjustability of ratio range, use of female rod ends in place of MGB tre and further scope for adjusting/fine tuning bumpsteer.
Still would use the herald rack and track rods Colin - there must be an increase in forces from a Triumph herald on skinny tyres to a V6 Stratos on wide tyres?Originally Posted by colin artus
yea chris, absolutely, to be honest i'd had a few softy beers when i replied.. I was already planning on running m14 rod ends rather than the track rods. I've got no issues making up some shorter arms to improve the ratio, are there still issues with the original rack do you think? As i said already sorted out the column and uni joints to suit this rack. I've also read that escort racks are similar, same spline but different mounts? better option?
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